/*
 * Copyright (c) 2012 Sean Connelly
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
 * associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT
 * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

var path = require('path');
var fs = require('fs');
var textStream = require('./text-stream.js');
var lexRho = require('./lex-rho.js');
var parseRho = require('./parse-rho.js');

exports.getAst = function() {
		// return the AST of the '../common/pre-defined/main.rhox' file
		return parseRho.parse(
				lexRho.lexExtended( // lexExtended because it's rhox (*not* rho)
						textStream.create(
								fs.readFileSync(
										path.resolve(__dirname, '../common/pre-defined/main.rhox'),
										'utf8'
									)
							)
					)
			);
	};
